Business Statistics and Research Methods MCQs
Practice free Business Statistics and Research Methods multiple-choice questions with instant answer feedback and step-by-step solutions. Click an option to check yourself, reveal the full explanation, and work through all 1366 questions — no login required.
Question 820hard
The sum of squares of deviation of 20 observations from their mean is 720 and the mean is 60. The coefficient of variation is:
Question 821medium
The arithmetic mean of a series is the figure obtained by dividing the sum of values of all items by
Question 822hard
Assertion (A) Median is simply the middle value when the data have been arranged in ascending or descending order. Reason (R) Median refers to middle value in the distribution.
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Question 823easy
Which one of the following software is used for Research Analysis?
Question 824hard
The value of correlation lies between - and -
Question 825hard
In badminton practice session, the probability that the player A serves properly is 0.8 and that he player B serves properly is 0.9. If there are only two players, then find the probability that it is serves properly.
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Question 826medium
Sturge's rule is used to find out directly:
Question 827hard
Two events are said to be independent, as per the theory of probability, if the occurrence of one
Question 828hard
In . . . . . . . ., selection of sample items is independent of the person making the study.